Why does this code return answer and none when run

Question

def max(x, y):
if x >=y:
print (x)
else:
print (y)

print(max(4, 7))
print (max(8, 5))

Answer 1

either use return instead of print in the max function:

def max(x, y):
if x >=y:
return (x)
else:
return (y)

print(max(4, 7))
print (max(8, 5))

or don't use print on max calls:

def max(x, y):
if x >=y:
print (x)
else:
print (y)

max(4, 7)
max(8, 5)

the reason behind the none value is a result of printing a function call which does not return anything (essentially returns none)